Dump-car.



V. E. SISSON.

DUMP OAR.

APPLICATION FILED MAY 16, 1907.

1,000,446, Patented Aug. 15, 1911.

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COLUMBIA PLANOGRAPH C0-. WASHINGTON. D. C.

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VINTON E. SISSON, 0F WEBSTER GROVES, MISSOURI, ASSIGNOR TO THE INGOLDSBYAUTOMATIG- GAR COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF WESTVIRGINIA.

DUMP-GAR.

Specification of Letters Patent.

Application filed. May 16, 1907.

Patented Aug. 15, 1911.

Serial No. 374,032. I

To all whom it may concern:

Be it known that I, VINTON E. SIssoN, a citizen of the United States,residing at ebster Groves, in the county of St. Louis and State ofMissouri, have invented a certain new and useful Improvement in Dump-Cars, of which the following is a full, clear, and'exact description,reference being had to the accompanying drawings.

This'invention relates to dump cars wherein there are a plurality ofdumping doors, the object being to provide raising mechanism for suchdoors arranged to include compensating mechanism so that the two doorsmay be raised together by the movement of a single driving mechanismwhile this same driving mechanism may operate either door independently.Thus, if one door should be left closed, or in closing should becomecaught by material clogging in its opening, the other door may bebrought home and secured. Furthermore, should there be any stretching orwant of adjustment of the raising mechanism as applied to either door,my compensating mechanism enables both doors to be still brought intoclosed position by the single driving mechanism.

My raising mechanism is well adapted for use on cars of the Ingoldsbytype, wherein there is a central longitudinal member to which dumpingdoors are hinged, which are substantially horizontal when closed,extending outwardly to the car sides. The invention is shown herein asapplied-to such type of car, and more particularly to that kind ofIngoldsby car which is shown in application No. 335,852, filed Sept.20th, 1906, by Frank S. Ingoldsby. In such car there is an individualraising mechanism for the doors on each side of the central beam, thisraising mechanism being operated by a longitudinal tension member. Inapplying'my invention to this car, I connect each of these twotensionmembers with a yoke and connect the mid-point of the yoke withthe winding mechanism proper. The result of my yoke connection is thatif doors on both sides are down, when the winding mechanism is operated,the yoke pulls both raising mechanisms equally, raising the two doors.As soon as the movement of one door is stopped, either by its cominginto position,

or being blocked by material between it and the car side, any furthermovement of that end of the yoke connected therewith is stopped, and thecontinued movement of the raising mechanism causes the yoke to swingaround such end as a pivot, pulling on the other raising mechanism untilthe door connected therewith is brought into final position. Themechanism and operation is hereinafter more fully explained.

The drawings clearly disclose my invention applied to a car of the typementioned.

Figure 1 is a sectional side elevation of a portion of such car. Fig. 2is a crosssection. Fig. 3 is a plan in section, being substantially onthe plane indicated by the line 3-3 of Fig. 2. Fig. 4 is an end View ofthe car.

As shown in the drawings, 10 represents the sides of the car, and 11 thecentral longitudinal member, which is shown as composed of verticalplates 12, a 'surmounting ridge 13, bracing members 14 between the outersides of the plates and the ridge, reinforcing angles 15 extending alongthe lower edges of the plates 12, and cross braces 16 secured to theangles 15.

The dumping doors are designated 17. They are pivoted to the centralmember and extend outwardly and abut against the under edges of the carsides. As shown, these doors extend downwardly some distance from theirpivots before they extend outwardly.

The raising mechanism shown comprises toggle links 20 and 21' (connectedrespectively to a floor beam 18 of the door, and to a cross brace 16)links 23 leading upward from the knuckle of this toggle, bell cranks 24to which the links are connected, and longitudinal tension memberconnected with the upper end of the bell cranks. The bell cranks arepivoted at their elbows on the outer sides of the vertical plates 12.The longitudinal tension member comprises, as shown the bars 25 and 26and the chain 27. With such a structure, if a pull be given to the chain27, the door is forced upwardly. When in its horizontal position, thedoor is heldby suitable means, not shown. I connect the two chains 27 onopposite sides of the plates 12 to the ends of a yoke 30 which normallyrests on a pair of straps or chairs 31 secured to the angle ironstiffeners 32 at the inclined ends of the plates 12. The midpoint ofthis yoke is suitably connected with the driving mechanism. Thus fromthis midpoint leads a chain 35 to a winding shaft 36, which has a bevelgear 37 with which meshes a pinion 38, on a crank shaft 39, the handcrank 40 on this shaft furnishing means for rotating it and hencewinding in,

the chain. 41 represents a suitable ratchet and pawl to secure the gainaccomplished in winding. It'will be seen that this Winding mechanism,drawing the yoke along the chairs 31, pulls on both chains 27 and raisesdoors on both sides of the car so long as they are free to move. But assoon as either door is stopped, the continued winding pulls solely onthe movable door, bringing it into position. Thus, if only the door ordoors on one side of the car are dropped, my winding mechanism may serveto raise such side, as well as when doors on both sides are dropped.Furthermore,'if both doors are dropped, and in the raising of them, onebecomes seated first, or becomes caught, the winding may continue,bringing the other door into final position.

Fig. 3 shows in full lines the position of the yoke when the doors areclosed; in dotted lines, the position of the yoke when both doors are-open;and furthermore, in dotted lines, in diagonal direction, theposition of the yoke when one door alone is dropped.

As heretofore stated, when in final position, the doors are held bysuitable means,not shown. The lever 44:, shown in dotted lines in Fig.1, is to be taken as a representation of any means which may operate thedoor holding mechanism, as is well understood. This lever in theembodiment shown, is mounted on a rock shaft 49 on which is a short arm45, this arm standing beneath a pawl on a bell crank 46, which serves tonormally hold in position a lever 47, which lever supports the shaft 36with its gear 37 in mesh with the pinion 38. As the lever 4 1 is thrownto release the doors, its first movement swings the bell crank &6 whichreleases the lever 47, allowing the shaft 36 and gear 37 to drop, thusdisengaging that gear from its pinion and preventing the crank beingthrown violently around'when the doors drop.

Having thus described my invention, I claim: a V W t 1. In a dump car,the combination of a plurality of sets of dumping doors, individualraisingmechanisms for the different sets including members under tensionduring the raising, a yoke connected with said members, a winding shaft,and connectingmechanism between the winding shaft and the yoke.

2. In a dump car, the combination of a central longitudinal member,dumping doors hinged thereto, a pair of door raising mechanisms carriedby the central longitudinal member and having tension members extendingalong the same, a movable yoke located approximately at the end of thecentral longitudinal member and crossing it and having its endsconnected withithe tension members of. the door raising mechanism, andmechanism for moving themidpoint of the yoke.

3. In a dump car, the combination of dumping doors, raising mechanismadapted to push upward on the undersides of said doors, said raisingmechanism adapted to operate the doors conjointly, or a less numberindependently, whereby improper operation of one door will not interferewith the closing of the other.

4. In a dump car, the combination of a 5. In a dump car, the combinationof a plurality of dumping doors, a plurality of individual raisingmechanismstherefor, said raising mechanisms adapted to push upward onthe under sides of said doors, a common operating mechanism for theraising mechanism, and compensating mechanism connecting the operatingmechanism with the individual raising mechanisms.

6. In a dump car, the combination of a plurality of doors, individualraising mechanisms therefor adapted to push upward on the under side ofthe doors, a yoke connecting such raising mechanisms, and an operatinmechanism adapted to move said yoke.

7. In a dump car, the combination of dumping 'doors, of two raisingmechanisms adapted to push upward on the under side of the said doors, ayoke connecting near its ends with said raising mechanisms, and windingmechanism connected with substantially the middle point of the yoke. 8.In a dump car, the combination of dumping doors and raising mechanismsextending longitudinally ofthe car, said raising mechanisms adapted topush upward on the under side of the said doors and adapted to operatesuch doors conjointly if all move, or independently if any stops short,of its closed position. 7

9. In a dump car, the combination of a plurality of doors, individualraising mechanisms therefor extending longitudinally of a the car, saidmechanisms adapted to push upward on the under side of the said doors, ayoke connecting such raising mechanisms, and an operating mechanismadapted to move said yoke. 1 V o .10. In a dump car, the combination 'ofdumping doors, raising mechanism adapted In testimony whereof, Ihereunto aflix my to push upward on the under sides of said signature inthe presence of two Witnesses.

doors to raise the doors concurrently, and

compensating mechanism adapted to allow VINTON SISSON' the raising ofthe rest of the doors inde- Witnesses: v

pendently if some of the doors stop short of J. THELMA KNUDsoN,

their final position. MARY D. WHITCOMB.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). G.

